CN113872308A - Charging system and automobile - Google Patents

Charging system and automobile Download PDF

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Publication number
CN113872308A
CN113872308A CN202010607716.3A CN202010607716A CN113872308A CN 113872308 A CN113872308 A CN 113872308A CN 202010607716 A CN202010607716 A CN 202010607716A CN 113872308 A CN113872308 A CN 113872308A
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CN
China
Prior art keywords
port
switch
circuit
inductor
contact
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Pending
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CN202010607716.3A
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Chinese (zh)
Inventor
刘伟冬
王超
王兴辉
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BYD Co Ltd
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BYD Co Ltd
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Priority to CN202010607716.3A priority Critical patent/CN113872308A/en
Publication of CN113872308A publication Critical patent/CN113872308A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
    • B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007—Regulation of charging or discharging current or voltage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The application discloses a charging system and an automobile, wherein the charging system comprises a port module, a connecting module, a switch module and a charging module; the port module comprises a first port, a second port and a third port; the connecting module comprises a first contact and a second contact; the switch module comprises a first switch and a second switch; the first end of the first port is connected with the charging module; the first end of the second port is connected with the first contact; the first end of the third port is connected with the second contact; the second ends of the first port, the second port and the third port are respectively used for being connected with three phase lines of a three-phase power grid; the first end of the first switch is connected with the charging module; the second end of the first switch is connected with or disconnected from the first contact, the first end of the second switch is connected with the charging module, and the second end of the second switch is connected with or disconnected from the second contact. In this application, first switch and first contact switch on, and second switch and second contact switch on the back, can realize that the three-phase charges, have improved charge efficiency.

Description

Charging system and automobile
Technical Field
The application relates to the technical field of charging, in particular to a charging system and an automobile.
Background
With the development of electric vehicles, dc converters and on-board chargers on the electric vehicles have become very important components. However, the current dc converter and the vehicle-mounted charger can only support single-phase charging, and the charging efficiency is low.
Disclosure of Invention
An object of this application is to provide a charging system and car can support the three-phase and charge, has improved charge efficiency.
A first aspect of the present application provides a charging system, comprising: the charging device comprises a port module, a connecting module, a switch module and a charging module; the port module comprises a first port, a second port and a third port; the connection module comprises a first contact and a second contact; the switch module comprises a first switch and a second switch; the first end of the first port is connected with the charging module; the first end of the second port is connected with the first contact; the first end of the third port is connected with the second contact; the second ends of the first port, the second port and the third port are respectively used for being connected with three phase lines of a three-phase power grid; the first end of the first switch is connected with the charging module; the second end of the first switch can be connected with or disconnected from the first contact, the first end of the second switch is connected with the charging module, and the second end of the second switch can be connected with or disconnected from the second contact.
Therefore, the three-phase charging device has the advantages that through the arrangement of the three ports and the two switches, when the first switch is conducted with the first contact, and after the second switch is conducted with the second contact, the three-phase charging can be achieved, so that the charging efficiency is improved.
The charging system as described above, wherein the connection module further includes: a third contact and a fourth contact; the first end of the first port is also connected with the third contact and the fourth contact; the second end of the first switch can be connected with or disconnected from the third contact, and the second end of the second switch can be connected with or disconnected from the fourth contact.
From top to bottom, through increasing third contact and fourth contact, switch on when first switch and third contact, and second switch and fourth contact switch on the back, can realize single-phase charging. That is, this application can support single-phase charging, also supports the three-phase and charges, and can charge and the single-phase fast switch-over between charging at the three-phase, and the cost is lower, and the flexibility ratio is higher, and the suitability is strong.
The charging system as described above, wherein the charging system further includes: a sampling module; the sampling module comprises a first sampling port, a second sampling port and a third sampling port; the first end of the first sampling port is connected with the first end of the first port; the first end of the second sampling port is connected with the first end of the second port; a first end of the third sampling port is connected with a first end of the third port; and the second end of the first sampling port, the second end of the second sampling port and the second end of the third sampling port are respectively used for being connected with sampling equipment.
The charging system as described above, further comprising a stabilizing circuit, wherein the stabilizing circuit comprises a first capacitor, a second capacitor and a third capacitor; the first end of the first capacitor is connected with the first end of the first sampling port, the first end of the second capacitor is connected with the first end of the second sampling port, and the first end of the third capacitor is connected with the first end of the third sampling port; and the second end of the first capacitor, the second end of the second capacitor and the second end of the third capacitor are respectively connected with the charging module.
The charging system as described above, wherein the charging module includes an adjustment circuit and a voltage conversion circuit; the first end of the first port, the first end of the first switch and the first end of the second switch are all connected with the first end of the adjusting circuit; the second end of the adjusting circuit is connected with the voltage conversion circuit; the adjusting circuit is used for transmitting the voltage from the port module to the voltage conversion circuit after boosting, rectifying and stabilizing the voltage; the voltage conversion circuit is used for converting the voltage and transmitting the converted voltage to a load; the adjusting circuit is also used for power factor correction.
The charging system as described above, wherein the first adjustment circuit includes: a first inductor, a second inductor and a third inductor; the first end of the first port is connected with the first end of the first inductor; the first end of the first switch is connected with the first end of the second inductor; a first end of the second switch is connected with a first end of the third inductor; the second end of the first inductor, the second end of the second inductor and the second end of the third inductor are respectively connected with the second adjusting circuit; the second adjustment circuit includes: the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are connected in parallel; the first half-bridge circuit comprises a first switch tube and the second switch tube, the second half-bridge circuit comprises a third switch tube and a fourth switch tube, and the third half-bridge circuit comprises a fifth switch tube and a sixth switch tube; a first node is arranged between the first switching tube and the second switching tube, a second node is arranged between the third switching tube and the fourth switching tube, and a third node is arranged between the fifth switching tube and the sixth switching tube; a second end of the first inductor, a second end of the second inductor, and a second end of the third inductor are connected to the first node, the second node, and the third node, respectively; the third regulating circuit comprises a fourth half-bridge circuit, the fourth half-bridge circuit and the third half-bridge circuit being connected in parallel; the fourth half-bridge circuit comprises a seventh switching tube and an eighth switching tube; a fourth node is arranged between the seventh switching tube and the eighth switching tube; and the fourth node is used for being connected with a zero line.
The charging system as described above, wherein the first inductor, the second inductor, and the third inductor are windings of an electric machine.
The charging system as described above, wherein the first half-bridge circuit, the second half-bridge circuit, and the third half-bridge circuit are bridge arms of a motor controller.
The charging system as described above, wherein the voltage conversion circuit includes a first conversion circuit, a transformer, a second conversion circuit, and a third conversion circuit; one end of the first conversion circuit is connected with the adjusting circuit, the other end of the first conversion circuit is connected with the primary winding of the transformer, and the second conversion circuit and the third conversion circuit are respectively connected with the secondary winding of the transformer.
A second aspect of the present application provides an automobile comprising the charging system of any one of the first aspects of the present application.
The charging module that this application embodiment provided switches on when first switch and first contact, and second switch and second contact switch on the back, and three phase lines of charging module and power switch on can make three phase current provide the electric energy for the charging module from this, have realized the three-phase function of charging, have improved charge efficiency, and the cost is also lower.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings used in the embodiments will be briefly described below.
Fig. 1 is a schematic diagram of a charging system provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a charging system provided in an embodiment of the present application;
fig. 3 is a schematic diagram of a charging system provided in an embodiment of the present application;
fig. 4 is a schematic diagram of a charging system provided in an embodiment of the present application;
fig. 5 is a schematic diagram of a charging system provided in an embodiment of the present application;
fig. 6 is a schematic diagram of a charging system provided in an embodiment of the present application.
Description of reference numerals:
100-port module, P1-first port, P2-second port, P3-third port, 200-connection module, S1-first contact, S2-second contact, S3-third contact, S4-fourth contact, 300-switch module, K1-first switch, K2-second switch, 400-charging module, 410-first regulation circuit, L1-first inductor, L2-second inductor, L3-third inductor, 420-second regulation circuit, T1-first switch tube, T2-second switch tube, T3-third switch tube, T4-fourth switch tube, T5-fifth switch tube, T6-sixth switch tube, 430-third regulation circuit, T7-seventh switch tube, T36 8-eighth switch tube, 440-voltage conversion circuit, 441-first conversion circuit, C4-fourth capacitor, T9-ninth switch tube, T10-tenth switch tube, T11-eleventh switch tube, T12-twelfth switch tube, 442-transformer, 443-second conversion circuit, C5-fifth capacitor, T13-thirteenth switch tube, T14-fourteenth switch tube, T15-fifteenth switch tube, T16-sixteenth switch tube, 444-third conversion circuit, C6-sixth capacitor, T17-seventeenth switch tube, T18-eighteenth switch tube, T19-nineteenth switch tube, T20-twentieth switch tube, 445-first resonance circuit, L4-fourth inductor, C7-seventh capacitor, 446-second resonance circuit, L5-fifth inductor, c8-eighth capacitor, 500-sampling module, Y1-first sampling port, Y2-second sampling port, Y3-third sampling port; 600-a stabilizing circuit, C1-a first capacitor, C2-a second capacitor, C3-a third capacitor, D1-a power battery and D2-a storage battery.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
Referring to fig. 1, a charging system provided in the present embodiment includes a port module 100, a connection module 200, a switch module 300, and a charging module 400.
Wherein the port module 100 comprises a first port P1, a second port P2, and a third port P3; the connection module 200 includes a first contact S1 and a second contact S2; the switch module 300 includes a first switch K1 and a second switch K2.
Specifically, a first end of the first port P1 is connected to the charging module 400; a first end of the second port P2 is connected with the first contact S1; a first end of the third port P3 is connected with the second contact S2; the second ends of the first port P1, the second port P2 and the third port P3 are respectively used for being connected with three phase lines of a three-phase power grid. A first terminal of the first switch K1 is connected to the charging module 400; a second terminal of the first switch K1 can be turned on or off with the first contact S1, a first terminal of the second switch K2 is connected with the charging module 400, and a second terminal of the second switch K2 can be turned on or off with the second contact S2.
According to the charging module 400 provided by the embodiment of the application, when the first switch K1 is conducted with the first contact S1, and the second switch K2 is conducted with the second contact S2, the charging module 400 is connected with three phase lines of a power supply, so that the three-phase power supply provides electric energy for the charging module 400, a three-phase charging function is realized, the charging efficiency is improved, and the cost is lower.
Further, referring to fig. 2, the connection module 200 further includes a third contact S3 and a fourth contact S4. Wherein the first end of the first port P1 is also connected with the third contact S3 and the fourth contact S4. The second terminal of the first switch K1 can also be turned on or off with the third contact S3, and the second terminal of the second switch K2 can also be turned on or off with the fourth contact S4.
When the first switch K1 is connected to the third contact S3 and the second switch K2 is connected to the fourth contact S4, the charging module 400 is connected to one phase line of the power source, so that the single-phase power source can provide power to the charging module 400, and single-phase charging is realized. That is, the charging module 400 provided by the embodiment of the present application can switch between three-phase charging and unidirectional charging, and has high flexibility and strong adaptability.
Optionally, referring to fig. 3, the charging system further includes a sampling module 500. The sampling module 500 includes a first sampling port Y1, a second sampling port Y2, and a third sampling port Y3. Specifically, a first end of the first sampling port Y1 and a first end of the first port P1 are connected; a first end of the second sampling port Y2 and a first end of the second port P2 are connected; a first end of the third sampling port Y3 and a first end of the third port P3 are connected; the second end of the first sampling port Y1, the second end of the second sampling port Y2 and the second end of the third sampling port Y3 are respectively used for connecting with a sampling device.
It can be understood that the sampling device may be a Micro Controller Unit (MCU) on the automobile, and the MCU may obtain voltages of the respective ports through the first sampling port Y1, the second sampling port Y2, and the third sampling port Y3, analyze the obtained voltage signals, identify signals such as amplitude, phase, and frequency of the analyzed grid voltage, and determine whether the current connection is single-phase power or three-phase power according to the signals such as amplitude, phase, and frequency.
Further, with continued reference to fig. 3, the charging system provided in the embodiment of the present application further includes a stabilizing circuit 600, where the stabilizing circuit 600 includes a first capacitor C1, a second capacitor C2, and a third capacitor C3. Specifically, a first terminal of the first capacitor C1 is connected to a first terminal of the first sampling port Y1, a first terminal of the second capacitor C2 is connected to a first terminal of the second sampling port Y2, and a first terminal of the third capacitor C3 is connected to a first terminal of the third sampling port Y3; the second terminal of the first capacitor C1, the second terminal of the second capacitor C2 and the second terminal of the third capacitor C3 are respectively connected to the charging module 400. The capacitance of the stabilizing circuit 600 plays a role of filtering when charging, so as to improve the stability of the sampling signal of the sampling module 500 and improve the electromagnetic compatibility (EMC). The capacitor of the stabilizing circuit 600 plays a role in stabilizing the output signal when discharging, thereby improving the discharging stability.
Further, referring to fig. 4, the charging module 400 includes an adjusting circuit and a voltage converting circuit 440; a first terminal of the first port P1, a first terminal of the first switch K1 and a first terminal of the second switch K2 are all connected to a first terminal of the regulating circuit; the second terminal of the adjusting circuit is connected to the voltage converting circuit 440. Specifically, the adjusting circuit is configured to boost, rectify and stabilize the voltage from the port module 100, and then transmit the voltage to the voltage converting circuit 440; the voltage conversion circuit 440 is used for converting the voltage and transmitting the converted voltage to a load.
The adjusting circuit includes a first adjusting circuit 410, a second adjusting circuit 420, and a third adjusting circuit 430 connected in sequence. Specifically, a first end of the first port P1 and a first end of the first switch K1 and a first end of the second switch K2 are respectively connected to the first adjusting circuit 410, and a second end of the first capacitor C1, a second end of the second capacitor C2, a second end of the third capacitor C3 and the third adjusting circuit 430 are respectively used for being connected to a neutral line.
Therefore, the voltage transmitted to the voltage conversion circuit 440 can be relatively stable and the voltage value is relatively high by the adjusting circuit, so that the voltage supplied to the power load by the voltage conversion circuit 440 can be increased, and the power utilization efficiency can be improved.
Optionally, referring to fig. 6, the first adjusting circuit 410 includes a first inductor L1, a second inductor L2, and a third inductor L3. Specifically, a first terminal of the first port P1 and a first terminal of the first inductor L1 are connected; a first terminal of the first switch K1 and a first terminal of the second inductor L2 are connected; a first terminal of the second switch K2 and a first terminal of the third inductor L3 are connected; the second terminal of the first inductor L1, the second terminal of the second inductor L2, and the second terminal of the third inductor L3 are respectively connected to the second adjusting circuit 420. The first adjusting circuit 410 includes three inductors, and has a simple structure and a low cost. When the charging system is applied to an automobile, the three inductors in the first adjusting circuit 410 may be multiplexed with the motor, that is, the first inductor L1, the second inductor L2, and the third inductor L3 are windings of the motor, so that the first adjusting circuit 410 may not need to be repeatedly arranged when the charging system is arranged, so as to further reduce the cost.
As will be understood by those skilled in the art, the first adjusting circuit 410 and the second adjusting circuit 420 cooperate to boost the voltage, and the second adjusting circuit 420 may also rectify and stabilize the voltage. And the first adjusting circuit 410, the second adjusting circuit 420 and the third adjusting circuit 430 can all function as power factor correction.
Alternatively, referring to fig. 6, the second adjusting circuit 420 includes a first half-bridge circuit, a second half-bridge circuit and a third half-bridge circuit connected in parallel. Specifically, the first half-bridge circuit includes a first switching tube T1 and the second switching tube T2, the second half-bridge circuit includes the third switching tube T3 and the fourth switching tube T4, and the third half-bridge circuit includes the fifth switching tube T5 and the sixth switching tube T6; a first node is arranged between the first switching tube T1 and the second switching tube T2, a second node is arranged between the third switching tube T3 and the fourth switching tube T4, and a third node is arranged between the fifth switching tube T5 and the sixth switching tube T6. A second terminal of the first inductor L1, a second terminal of the second inductor L2, and a second terminal of the third inductor L3 are connected to the first node, the second node, and the third node, respectively.
The second adjusting circuit 420 has a simple structure and a low cost on the premise of ensuring the rectification function. When the charging system is applied to an automobile, the second adjusting circuit 420 can be reused in the motor controller, that is, the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are bridge arms of the motor controller, so that when the charging system is set, the second adjusting circuit 420 can be prevented from being repeatedly set, and the cost can be further reduced.
Optionally, referring to fig. 6, the third adjusting circuit 430 includes a fourth half-bridge circuit, and the fourth half-bridge circuit is connected in parallel with the third half-bridge circuit. Specifically, the fourth half-bridge circuit includes a seventh switch transistor T7 and an eighth switch transistor T8; a fourth node is arranged between the seventh switching tube T7 and the eighth switching tube T8; and the fourth node is used for being connected with a zero line. The third adjusting circuit 430 is a Power Factor Correction (PFC) circuit, which is relatively easy to obtain, low in cost, and has good boosting and PFC effects.
Alternatively, referring to fig. 5 and 6, the voltage converting circuit 440 includes a first converting circuit 441, a transformer 442, a second converting circuit 443, and a third converting circuit 444. Specifically, one end of the first conversion circuit 441 is connected to the third adjustment circuit 430, the other end of the first conversion circuit 441 is connected to the primary winding of the transformer 442, and the second and third conversion circuits 444 are respectively connected to the secondary windings of the transformer 442.
More specifically, the first conversion circuit 441 includes a fourth capacitor C4, a fifth half-bridge circuit, and a sixth half-bridge circuit, which are arranged in parallel. Wherein the fourth capacitor C4 is connected in parallel with the fourth half-bridge circuit; the fifth half-bridge circuit comprises a ninth switching tube T9 and a tenth switching tube T10, and the sixth half-bridge circuit comprises an eleventh switching tube T11 and a twelfth switching tube T12; a fifth node is arranged between the ninth switch tube T9 and the tenth switch tube T10, and a sixth node is arranged between the eleventh switch tube T11 and the twelfth switch tube T12.
The second switching circuit 443 includes a seventh half-bridge circuit, an eighth half-bridge circuit, and a fifth capacitor C5 arranged in parallel. Wherein the seventh half-bridge circuit comprises a thirteenth switching tube T13, a fourteenth switching tube T14, a fifteenth switching tube T15 and a sixteenth switching tube T16; a seventh node is disposed between the thirteenth switching tube T13 and the fourteenth switching tube T14, and an eighth node is disposed between the fifteenth switching tube T15 and the sixteenth switching tube T16.
The third switching circuit 444 includes a seventeenth switching tube T17, an eighteenth switching tube T18, a nineteenth switching tube T19, a twentieth switching tube T20 and a sixth capacitor C6. The seventeenth switching tube T17, the eighteenth switching tube T18, the nineteenth switching tube T19 and the twentieth switching tube T20 are all connected in series with the secondary coil of the transformer and then connected in parallel with the sixth capacitor C6.
In addition, the voltage conversion circuit 440 further includes a first resonant circuit 445 and a second resonant circuit 446. Wherein the first resonant circuit 445 comprises a fourth inductance L4 and a seventh capacitance C7; the seventh capacitor C7, the primary winding of the transformer and the fourth inductor L4 are connected in series, the other end of the seventh capacitor C7 is connected to the fifth node, and the other end of the fourth inductor L4 is connected to the sixth node.
The second resonant circuit 446 includes a fifth inductance L5 and an eighth capacitance C8; the fifth inductor L5, the secondary winding of the transformer and the eighth capacitor C8 are connected in series, the other end of the fifth inductor L5 is connected to the seventh node, and the other end of the eighth capacitor C8 is connected to the eighth node.
The above-mentioned conversion circuit is a direct current-direct current (DC-DC) conversion circuit, wherein the first conversion circuit 441 is a primary side circuit connected to the third adjustment circuit 430, the second conversion circuit 443 is a first secondary side circuit, and the second conversion circuit 443 is used for supplying power to the high-voltage power battery D1. The third switching circuit 444 is a second secondary side circuit, and the third switching circuit 444 supplies power to the low-voltage battery D2.
Finally, referring to fig. 5 and fig. 6, it is emphasized that the first interface P1, the second interface P2 and the third interface P3 are respectively connected to an AC power source AC1, an AC2 and an AC 3. In addition, in the whole charging system, besides three phase lines, there is a zero line, specifically, the line marked by N in fig. 5 and 6.
In the embodiment of the present application, all of the switch transistors are metal-oxide-semiconductor (MOS) field effect transistors.
The embodiment of the application also provides an automobile comprising the charging system provided by any embodiment of the application. The charging system and motor multiplex a first regulation circuit 410 and the motor controller multiplexes a second regulation circuit 420.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the description of the embodiments is only provided to help understand the method and the core concept of the present application.

Claims (10)

1. An electrical charging system, comprising: the charging device comprises a port module, a connecting module, a switch module and a charging module;
the port module comprises a first port, a second port and a third port; the connection module comprises a first contact and a second contact; the switch module comprises a first switch and a second switch;
the first end of the first port is connected with the charging module; the first end of the second port is connected with the first contact; the first end of the third port is connected with the second contact; the second ends of the first port, the second port and the third port are respectively used for being connected with three phase lines of a three-phase power grid;
the first end of the first switch is connected with the charging module; the second end of the first switch can be connected with or disconnected from the first contact, the first end of the second switch is connected with the charging module, and the second end of the second switch can be connected with or disconnected from the second contact.
2. The charging system of claim 1, wherein the connection module further comprises: a third contact and a fourth contact;
the first end of the first port is also connected with the third contact and the fourth contact;
the second end of the first switch can be connected with or disconnected from the third contact, and the second end of the second switch can be connected with or disconnected from the fourth contact.
3. The charging system of claim 1, further comprising: a sampling module; the sampling module comprises a first sampling port, a second sampling port and a third sampling port;
the first end of the first sampling port is connected with the first end of the first port; the first end of the second sampling port is connected with the first end of the second port; a first end of the third sampling port is connected with a first end of the third port; and the second end of the first sampling port, the second end of the second sampling port and the second end of the third sampling port are respectively used for being connected with sampling equipment.
4. The charging system of claim 3, further comprising a stabilization circuit comprising a first capacitor, a second capacitor, and a third capacitor;
the first end of the first capacitor is connected with the first end of the first sampling port, the first end of the second capacitor is connected with the first end of the second sampling port, and the first end of the third capacitor is connected with the first end of the third sampling port; and the second end of the first capacitor, the second end of the second capacitor and the second end of the third capacitor are respectively connected with the charging module.
5. The charging system of claim 4, wherein the charging module comprises an adjustment circuit and a voltage conversion circuit; the first end of the first port, the first end of the first switch and the first end of the second switch are all connected with the first end of the adjusting circuit; the second end of the adjusting circuit is connected with the voltage conversion circuit;
the adjusting circuit is used for transmitting the voltage from the port module to the voltage conversion circuit after boosting, rectifying and stabilizing the voltage; the voltage conversion circuit is used for converting the voltage and transmitting the converted voltage to a load; the adjusting circuit is also used for power factor correction.
6. The charging system according to claim 5, wherein the adjustment circuit includes a first adjustment circuit, a second adjustment circuit, and a third adjustment circuit connected in this order;
the first adjustment circuit includes: a first inductor, a second inductor and a third inductor; the first end of the first port is connected with the first end of the first inductor; the first end of the first switch is connected with the first end of the second inductor; a first end of the second switch is connected with a first end of the third inductor; the second end of the first inductor, the second end of the second inductor and the second end of the third inductor are respectively connected with the second adjusting circuit;
the second adjustment circuit includes: the first half-bridge circuit, the second half-bridge circuit and the third half-bridge circuit are connected in parallel; the first half-bridge circuit comprises a first switch tube and the second switch tube, the second half-bridge circuit comprises a third switch tube and a fourth switch tube, and the third half-bridge circuit comprises a fifth switch tube and a sixth switch tube; a first node is arranged between the first switching tube and the second switching tube, a second node is arranged between the third switching tube and the fourth switching tube, and a third node is arranged between the fifth switching tube and the sixth switching tube; a second end of the first inductor, a second end of the second inductor, and a second end of the third inductor are connected to the first node, the second node, and the third node, respectively;
the third regulating circuit comprises a fourth half-bridge circuit, the fourth half-bridge circuit and the third half-bridge circuit being connected in parallel; the fourth half-bridge circuit comprises a seventh switching tube and an eighth switching tube; a fourth node is arranged between the seventh switching tube and the eighth switching tube; and the fourth node is used for being connected with a zero line.
7. The charging system of claim 6, wherein the first inductor, the second inductor, and the third inductor are windings of an electric machine.
8. The charging system of claim 6, wherein the first half-bridge circuit, the second half-bridge circuit, and the third half-bridge circuit are legs of a motor controller.
9. The charging system of claim 5, wherein the voltage conversion circuit comprises a first conversion circuit, a transformer, a second conversion circuit, and a third conversion circuit;
one end of the first conversion circuit is connected with the adjusting circuit, the other end of the first conversion circuit is connected with the primary winding of the transformer, and the second conversion circuit and the third conversion circuit are respectively connected with the secondary winding of the transformer.
10. An automobile characterized by comprising the charging system according to any one of claims 1 to 9.
CN202010607716.3A 2020-06-29 2020-06-29 Charging system and automobile Pending CN113872308A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104249630A (en) * 2013-06-28 2014-12-31 比亚迪股份有限公司 Electric automobile and system of electric automobile for outwards supplying power
CN104253464A (en) * 2013-06-28 2014-12-31 比亚迪股份有限公司 System for mutual charging of electric vehicles and charging connector
CN109861357A (en) * 2018-09-07 2019-06-07 台达电子工业股份有限公司 Charging/discharging thereof and device
CN209666872U (en) * 2018-12-29 2019-11-22 比亚迪股份有限公司 Vehicular charger and vehicle
CN111193302A (en) * 2019-12-23 2020-05-22 深圳市核达中远通电源技术股份有限公司 Control method and system of bidirectional vehicle-mounted charger

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104249630A (en) * 2013-06-28 2014-12-31 比亚迪股份有限公司 Electric automobile and system of electric automobile for outwards supplying power
CN104253464A (en) * 2013-06-28 2014-12-31 比亚迪股份有限公司 System for mutual charging of electric vehicles and charging connector
CN109861357A (en) * 2018-09-07 2019-06-07 台达电子工业股份有限公司 Charging/discharging thereof and device
CN209666872U (en) * 2018-12-29 2019-11-22 比亚迪股份有限公司 Vehicular charger and vehicle
CN111193302A (en) * 2019-12-23 2020-05-22 深圳市核达中远通电源技术股份有限公司 Control method and system of bidirectional vehicle-mounted charger

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